html {
  box-sizing: border-box;
}

*,
*::before,
*::after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vw;
  font-size: 1vw;
}

.container {
  width: 100%;
  height: 100%;
  position: relative;
}
.container .bg {
  width: 100%;
  height: 60em;
  background: #000;
  min-height: 100vh;
  position: relative;
  perspective: 2000px;
  perspective-origin: bottom;
}
.container .bg .scene {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  bottom: 0;
  transform-origin: bottom center;
  transform: rotateX(60deg);
  width: 100%;
  height: 100em;
  background: #000;
}
.container .bg .spotlight .lamp-cord {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  top: 0;
  width: 10px;
  height: calc(5em + 3px);
  background: #727269;
}
.container .bg .spotlight .lamp {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  top: 5em;
  width: 10em;
  height: 3em;
  background: linear-gradient(to bottom, #727269 0% 80%, #c8b064 80% 100%);
  border-radius: 50% 50% 50% 50%/100% 100% 0 0;
}
.container .bg .spotlight .cone {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  top: 8em;
  width: 50em;
  height: max(100vh - 21em, 39em);
  background: rgba(186, 186, 150, 0.1411764706);
  -webkit-clip-path: polygon(40% 0, 60% 0, 100% 100%, 0 100%);
          clip-path: polygon(40% 0, 60% 0, 100% 100%, 0 100%);
}
.container .bg .spotlight .circle {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  bottom: 5em;
  width: 50em;
  height: 15em;
  background: #727269;
  border-radius: 50%;
  filter: blur(2px);
}
.container .ball {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  bottom: 25em;
  width: 10em;
  height: 10em;
  border-radius: 50%;
  background: radial-gradient(at 50% 25%, #fff 0 3%, rgba(255, 255, 255, 0.8784313725) 5%, rgba(255, 255, 255, 0.3411764706) 10%, transparent 15% 100%) 50% 0/150% 50% no-repeat, radial-gradient(circle at 50% 20%, rgba(255, 255, 255, 0.5019607843), rgba(0, 0, 0, 0.3411764706)), #f00;
  animation: ball-animate 1.5s cubic-bezier(0.4, 0, 1, 1) infinite alternate, highlight-animate 1.5s cubic-bezier(0.4, 0, 1, 1) infinite alternate;
}
.container .shadow .cone {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  bottom: 12.5em;
  width: 14em;
  height: 17.5em;
  background: rgba(68, 68, 68, 0.3019607843);
  -webkit-clip-path: polygon(14.2857142857% 0, 85.7142857143% 0, 100% 100%, 0 100%);
          clip-path: polygon(14.2857142857% 0, 85.7142857143% 0, 100% 100%, 0 100%);
  filter: blur(100px);
  animation: cone2-animate 1.5s 0s cubic-bezier(0.4, 0, 1, 1) infinite alternate;
}
.container .shadow .circle {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  bottom: 10.4em;
  width: 14em;
  height: 4.2em;
  background: #444;
  border-radius: 50%;
  filter: blur(2px);
  animation: circle2-animate 1.5s cubic-bezier(0.4, 0, 1, 1) infinite alternate;
}

@keyframes ball-animate {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(12.5em);
  }
}
@keyframes highlight-animate {
  0% {
    background-size: 150% 50%, 100% 100%, 100% 100%;
    background-position: 50% 0, 0 0, 0 0;
  }
  100% {
    background-size: 120% 40%, 100% 100%, 100% 100%;
    background-position: 50% -1%, 0 0, 0 0;
  }
}
@keyframes circle2-animate {
  from {
    width: 14em;
    background-color: #444;
  }
  to {
    width: 10em;
    background-color: #262626;
  }
}
@keyframes cone2-animate {
  from {
    height: 17.5em;
    -webkit-clip-path: polygon(14.2857142857% 0, 85.7142857143% 0, 100% 100%, 0 100%);
            clip-path: polygon(14.2857142857% 0, 85.7142857143% 0, 100% 100%, 0 100%);
  }
  to {
    height: 5em;
    -webkit-clip-path: polygon(14.2857142857% 0, 85.7142857143% 0, 85.7142857143% 100%, 14.2857142857% 100%);
            clip-path: polygon(14.2857142857% 0, 85.7142857143% 0, 85.7142857143% 100%, 14.2857142857% 100%);
  }
}